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Pertex 20d 100% Nylon R/S 1.03oz/yd

We didn’t think it was possible either, but the Hydrogen is even lighter and more packable than before. The new curved baffles on this bag reduce shifting of the down, allowing this bag to provide enough warmth for cool-weather climbs and backcountry excursions; a new easy-access, fold-down second zipper allows easy ventilation. At just a pound and a half, this bag puts the ultra in ultralight.

Insulation Material

Fill Weight

Bag Loft

Bag Temperature F

Bag Temperature C

EN Rating

Interior Length

81in (206cm)

Bag Dimensions (Shoulder x Hip x Foot)

61in (154.9cm) x 56in (142.2cm) x 39in (99.1cm)

Bag Zipper position

LZ

Weight

1lbs 7.3oz (665g)

Style Number

24120

Rated 5 out of
5 by
vistatkov from
Light and warmI bought this sleeping bag 2 years ago and I am very pleased. It is very puffy, high quality, very packable and super warm for its weight. I have used it a lot in different conditions and it has kept me warm in temperatures down to 0C (32F). The warmth to weight ratio of this product is amazing and it packs really small. It has not lost any of its qualities through long-term use. Another fantastic Marmot product!